Home / 93,275.28-128,660.40-76,304.16

Finding the Fourth Proportional to 93,275.28, 128,660.40 and 76,304.16

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Solution

The fourth proportional to 93,275.28, 128,660.40 and 76,304.16 is: 105,251.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,275.28 : 128,660.40 = 76,304.16 : x
  2. Step 2: Convert to fraction form
    93,275.28/128,660.40 = 76,304.16/x
  3. Step 3: Cross multiply
    93,275.28x = 128,660.40 × 76,304.16
  4. Step 4: Simplify right side
    93,275.28x = 9,817,323,747.26
  5. Step 5: Solve for x
    x = 9,817,323,747.26/93,275.28
  6. Step 6: Final answer
    x = 105,251.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.